Rotary explosion-motor.



J. BAUDOT.

ROTARY EXPLOSION MOTOR.

APPLICATION FILED N0v.24. 1913.

6 SHEETS-SHEET 1.

l. BAUDOT.

ROTARY EXPLOSION MOTOR.

APPLICATION FILED Nov.24. 1913.

L' Patented. Feb. 19,1918.

5 SHEETSwSHEET 2.

J. BAUDOT.

ROTARY EXPLOSION MOTOR.

APPLICATION FILED NOV.24. 1913.

R mmm ROR. 19; 1918.

6 SHEETS-SHEET 3.

Ra@ a,

1. BAUDOT.

ROTARY EXPLOSION MOTOR. APPLICATION FILI-:D N0v.24. 1913.

Patented Feb, 19,1918.

6 SHEETS-SHEET 4.

J. BAUDOT.

ROTARY EXPLOSION MOTOR. APPucATloN FILED N0v.24. l913.

1,2559647, Patented Feb. 19, 1918.

6 SHEETS-SHEET 5 1.BAUD0T. ROTARY EXPLOSION IVIOTOH.

APPLICATION FILED NOV.24. 1913.

Patentef Feb. 19, 1918.

6 SHEETS-SHEET 6.

Josnrn BAUno'r, or TOURCOING, FRANCE.

ROTARY EXPLOSION-MOTOR.

T 0 'all whom it may concern.'

Be it known that I, JOSEPH BAUDoT, a citizen of the Republic 'of France,residing at lindrical rotary motor, that is to say the arrangementof themotoparts is such that the explosions which occur four times perrevolution take place practically Without interruption. f

yThe improved motor comprises a-rotary member in the form of a hollowannular bodydivided into four compartments or cylinders which areentirelyindependent from each other, and within which there are'arranged to work pistons that are coupled in pairs and are associated byappropriate relative connecting mechanism with a relatively fixedfulcrum. The connecting mechanism in question allows the pistons to actin their respective cylinders exactly as do the pis-V tons'of a fourstroke cycle explosion motor, that is to say to draw in the fresh gas,to compress this gas up to the moment when it is exploded, allow theexploded gas to act by expansion on the corresponding abutment orcylinder end, and, finally to expel the products of combustion.

The improved rotary explosion motor operating as set forth may work withor without valves, and the parts of the relative con.

necting mechanism for connecting the pistons to the fulcrum are immersedin an oil bath contained in a casing which is connected to the rotarybody in which the cylinders are formed and takes part in the rotarymovement of the said body.

The improved motor enables almost the whole of the effect of theexpansion of the gases to be utilized and practically all the forcewhich results therefrom is transmitted tothe driving shaft. In effectthe rotary body formed by thecylinders constitutes an active movablemember, and the pistons, whileacting as reactive members, assist in partthe rotary eifortproduced by the force of the explosions acting on thecylinder ends or abutments.v Furthermore, as the pistons are guidedindependently of the cylinders the cylinders are not subjected-to anyuneven wear by friction of the pistons working Patentedlfeb. 19, 1918.

Application led November 24, 1913. Serial No. 802,776.

therein and consequently any 'possibility of the bore of the cylindersbecoming oval is prevented. The improved motor is very fiexible,possesses great etiiciency, is of simple construction and'comparativelycheap to construct, at the same time it is light and takes up littlespace. v

Figure 1 of theaccompanying drawings illustrates in central verticallongitudinal section one construction of the improved motor providedwith inlet and exhaust valves.

Fig. 2 is a vertical transverse section taken through the cylinders ofthe motor and corresponding to the line A-B of Fig. 1.

Fig. 3 is a vertical transverse section taken throughv the casing ofthemotor and corresponding to the line C-D of Fig. 1.

Fig. 4 is a vertical transverse section taken through the inlet andexhaust valves for the motor fluid and vcorresponding to the line E-F ofFig. 1.

-F ig. 5 is a front View of a fixed ring formed with inlet and exhaustports for the. motor fluid. located in frontvof the valves.

Fig. 6 is a detail view in longitudinal section showing the'arrangementof the inlet and exhaust chamber of the improved motor when constructedto work without valves.

Fig. 7 is a vertical transverse section corresponding tothe line G-H ofF ig. 6.

Referring to Figs. 1 to 5, the rotary explosion motor illustratedcomprises a movable member consisting of a hollow annularbody 1 theinterior of which is divided, by fixed partitions or abutments 2 intofour equal parts that constitute cylinders each formed with an opening 3for the inlet and exhaust, see Figs. 1 and 2. Arranged to Work in thefour cylinders are pistons 4, 4, 4, 4 connected togetherin pairs bycurved arms 5 and 6 which extend through slots formed in the inner wallof the annular memberv 1. The arm 5 is provided with a boss 7 which isfixed on a hollow shaft 8, and the arm 6 is provided with a boss 9 whichis fixed on a hollow shaft 10.

Bolted to one side of the movable meniber'l is a disk or plate 11.Projecting from the center of the outer -side of the disk or plate 11 isa shaft 12 which serves as the driving shaft.- Bolted on the other sideof front portion of 'which may be removable as shown. The casing 14,which rotates with the movable member 1, is freely mounted at i ingssuitably fixed in the casing 14 so that the cranks 18-and 19 and theirpinions 16 and 17 are carried around the fixed toothedwheel 15 as thecasing 14 rotates.

The cranks 18 and 19 are connected by links 20 and 21.to the free endsof arms or rods 22 and 23 that project from. the shafts 8 and 10 onwhich the piston arms 5 and 6 are fixed.

The openings 3 for the inlet and exhaust of the motor fluid eachcommunicates With a corresponding valve chest 24, see Figs. 1 and 4,provided with a valve and with a sparking plug. The four valve chestsare connected by a distributing ring 25'having four pockets 26corresponding to the valve chests 24. The ring 25 is mounted to rotatewith slight friction against a counter ringv 27, see Figs. 1 and 5,formed with ports 28 and 29 in communication with passages 30 and 31 oneof which serves for the inlet of the motive fiuid and the other for theescapeof the burnt gases.

The-counter ring 27 is fixed to the frame of the motor, which is notshown, and is provided with a central boss 32 within which the drivingshaft 12 freely rotates. The boss 32 is tted with a sleeve 33, see Figs.1 and 4. having an inwardly extending part 34 adapted to act asa cam forcontrolling the valves by means of levers 35 which are pivoted to lugsprojecting from the ring25. The socket 33 may be angularly adjustedwithin the boss 32 so that the times at which the valves act can bevaried and the advance or retardation of thel inlet or exhaust be-thereby easily regulated.

The working of the motor is as follows Assuming the parts to be in theposition shown in Fig. 2; if the mixture previously compressed in thecylinder Z is exploded the expansive force ofl the gases will tend toforce the corresponding partition or abutment 2 and the piston 4 of thiscylinder apart. As however the partition or abutment 2 is fixed to themovable member 1 the said member will therefore be carried around in thedirection of the arrow andwill cause the driving shaft 12 as well as thecasing 14 to rotate, while the piston 4, acting as a reactive memberwill not be able to move in the cylinder except by carrying around thehollowshaft 10 which is connected to the piston by the arm 6. Throughthe arm 23 and link 21 the shaft 10 will cause the crank 19 andconsequently the pinionk 17 also to rotate relatively to the rotationthereof caused by engagement of the said pinion with the fixed wheel 15and owing to the rotation of the casing 14. The result will be that therelative rotation of the pinion will also rotate the casing 14 whichcarries it and within which it rotates.

During this movement the pinion 16, which is also in gear with the fixedtoothed wheel 15 and carried around by the casing 14, will be forced tocorrespondingly rotate, and, by means of the crank 18, link'20 and arm22 will so rotate the hollow shaft 8 as to the driving shaft 12 withoutthe necessity of intermediate parts, such as cranks, connecting rods,etc., while the force to which the reactive members formed by thepiston4 are subjected, instead of offering a resistance to these rotarymovements on the contrary in a great measure facilitates or assistssuch.

movements, because the cranks actuated by the pistons and acting on theplanet pinions 16 and 17 of the toothed sun wheel 15 have got ovtrthe'dead points.

It will also be s een thatl the casing 14 connected -to the rotaryhollow annular niember 1 and rotating with it prevents the oil which isnecessary for the lubrication of the parts which it incloses from beingforced into the said hollow annular member by centrifugal force, andthat the valves which serve both' for the inlet and exhaust areVetliciently ,cooled by the admission of the fresh gas. The arrangementof themotor is also advantageous in that thev valves with which l itisfitted are simply actuated by the passage of the valve stems over thefixed cam 34, the angular position of which is capable of adjustment atwill so as to advance o r retard the inlet or the exhaust. l

Although the motor just described has valves it must be understood thatit is possible to' construct the improved motor without valves. Anexample of such a construction is illustrated in the modification shownin Figs.` 6 and 7.

i In this modified construction the inlet and exhaust controllingmechanism comprises an annular chamber 36, of slightly conical form,mounted` on the driving shaft 12 and divided by partitions into twoindependent compartments 37 and 38 that are formed with suitable portsat the periphery'of the chamber.

Mounted to rotate with slight friction on the chamber 36 is a sleeve 39having radially eX- be arranged in the said pipes or branches 40.`

" As will be seen the sleeve 39 is fixed to the movable member 1androtates with it on the chamber 36; it therefore constitutes a distionwith the motor cylinders.v

tributing device, and places the 'compartments 37 and 38 successively incommunica- Pipes 41 and 42 for the explosive mixture and the exhaustrespectively, are connected to the compartments 87 and 38. rl`he annularchamber 36 is capable of slight adjustment on the drivin'g shaft 12 sothat the inlet or exhaust can be retarded ory advanced as desired.

What l claim is 1. 1n a rotary explosion motor, a hollow annular membermounted to rotate, pistons arranged to work within the annular chamberof said rotary member, partitions dividing the annular chamber of saidmember into compartments corresponding in number to the number of saidpistons, a driving shaft operatively connected to sai-d member, meansfor delivering explosive mixture to and removing products of combustionfrom each 'compartment of said rotarymember between the correspondingsaid piston and the corresponding said .partition ahead of said pistonin the direction of rotation of said member, and means operativelyconnected to said driving shaft and driven by the eifect of theexplosions on said pistons.

2. ln a rotary explosion motor, a hollow annular member mounted torotate, pistons arranged to work within the annular cham-` ber of saidrotary member, partitions dividing the annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft operatively connected to said member, means fordelivering explosive mixture to and removing products of combustion fromeach compartment of said rotary member between the corresponding saidvpiston and the corresponding said partition ahead of said piston in thedirection of rotation of said member, planet pinions carried by saidrotary member, a fixed sun wheel about which said planet pinions revolveandwith which they gear, cranks on which said pinions are ixed,

and connecting means between said pistons and said cranks. e

3. In a rotary explosion motor, ahollow annular member mounted torotate, pistons arranged to work within the annular chamber of saidrotary member, partitions dividing tlie annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft are fixed, levers to which said pistons are connected inpairs, shafts on which said levers are fixed, arms on said shafts, andlinks connecting said arms to said cranks.

4. 1n a rotary explosion motor, a hollow annular member mounted torotate, pistons arranged to work within the annular chamber of saidrotary member, partitions dividing the annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft operatively connected to *said member, means fordelivering explosive mixture to and removing products ofv combustionfromeach compartment of said rotary member between` the correspondingsaid piston and the .cor-

-responding said partition 'ahead of said piston in the direction ofrotation of said member, and means forpmoving said pistons to and fro inthe compartments of said rotary member. v

5. ln a rotary explosion motor, a hollow annular member mounted torotate, pistons arranged to work within the annular chamber of saidrotary member, partitions dividing the annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft operatively connected to said member, means fordelivering explosive mixture to and removing products of combustion fromeach compartment of said rotary member between the corresponding saidpiston and the corresponding said partition ahead of said piston in thedirection of rotation of said inember', and means driven by said rotarymember for moving said pistons to and fro in the compartments of saidrotary member.4

6. ln a rotary explosion motor a hollow annular member mounted torotate., pistons arranged to work within the annular chamber of saidrotary member, partitions dividing the annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft operatively connected to said member,ameans fordelivering explosive mixture to and moving products of combustion fromeach compartment of said rotary member between the corresponding saidpiston and the corresponding said. partition ahead of said piston in thedirection of rotation of said member, mechanism for moving said pistonsto and fro in the compartments of said rotary compartments correspondingin number to the number of said pistons, a driving shaft operativelyconnected to said member, means comprising a common inlet and exhaustport for delivering explosive mixture to and removing products Aofcombustion from each compartment of said rotary member between thecorresponding said piston and the corre- .sponding'said partitio-n aheadof said piston in the direction of rotation of said member, and meansoperatively connected to said driving shaft and driven by the effect ofthe explosions onl said pistons.

8," In a rotary explosion motor` a hollow annular member mounted torotate, pistons arranged to work within the annular chambei of saidrotary member, partitions dividing theannular chamber of said member ito compartments corresponding in number til the number of said pistons,a driving shaft operatively connected'to said member, means comprising acommon inlet and exhanst port for delivering explosive mixture to andremoving products of combustion from each compartment of said rotarymember between the corresponding said piston and the corresponding saidpartition ahead of said piston in the direction of rotation of saidmember, planet pinions carried by said rotary member, a fixed sun wheelabout which said planet pinions revolve and with which they gear, crankson which said pinions are fixed, and connecting means between saidpistons and cranks.

' 9. 1n a rotary explosion motor, a hollow 'annular member mounted torotate, pistons arranged to Iwork within the annular chamber of saidrotary member, partitions dividing the annular chamber of said memberinto compartments corresponding in number to the number of said pistons,a driving shaft operatively connected to said member, means comprlsing acommon 1nlet and exhaust port for delivering explosivemixture to and removing products of combustion from each v compartment of said rotarymember between' the corresponding said piston andthe corresponding saidpartition ahead of said piston inthe direction of rotation of saidmember, and means for moving `said pistons to a'nd fro in thecompartments of said rotary member.

10. ln an explosion motor, a. driving shaft, a hollow annular body fixedto saidshaft and formed with four common inlet and exhaust ports, fourpartitions fixed in'the *hollow annular body dividing its interior intofour equal parts corresponding one `to each port, four pistons workingin the compartments of said annular body, two levers connecting saidpistons together in pairs, co4 axlal shafts on which said levers arefixed, a casing fixed to said annular body, two cranks mounted to rotatein said casing, planet pinions on said cranks, a fixed sun wheel locatedwithin said casing and engaged by said pinions, arms on said coaxialshafts, and links connecting said arms to said cranks.

11. In an explosion motor, a driving shaft, a hollow annular body fixedto said shaft and formed with four common inlet and exhaust ports, fourpartitions fixed in the hollow annular body 4dividing its linterior intofour equal parts corresponding one to coaxial shafts, and linksconnecting said arms to said cranks.

12. In an explosion motor, a driving shaft,

a hollow annular body fixed to said shaft and formed with four commoninlet and exhaust ports, a fixed ring formed with inlet and exhaustports adapted to communicate with the common inlet and exhaust ports ofv said annular body and about which said annular body is mounted torotate, four partitions fixed in the hollow annular body dividingitsinterior into four equal parts, corresponding one to each port, fourpistons working in the compartments of Said annular body, two leversconnecting said pistons together in pairs, coaxial shafts on which saidlevers are fixed, a casing fixed to said annular body, two cranksmounted to rotate in said casing, planet pinions on said cranks, a fixedsun wheel located within said casing and engaged by said pinions,y armson said coaxial shafts, and links connecting said arms to said cranks. I

13. In an explosion motor, a driving shaft, a hollow annular body fixedto said shaft and formed with four common'inlet and exhaiist ports, afixed ring formed with inlet and exhaust ports adapted to communicatewith the common inlet and exhaust ports of said annular body and aboutwhich said annular body is mounted to rotate, four partitions saidpistons togethery engaged by said pinions, arms on said co-l axialshafts, and links connecting said arms to sald cranks.

Signed at Roubaix, France, this eleventh day of November, 1913,

JOSEPH BAUDOT.

I `VVitn-esses:

P. V. PICKY, ALFRED C. HARRISON.

